[Q] Galaxy S2 will not power on - Android Q&A, Help & Troubleshooting

Hey all,
My Galaxy S2 won't turn on, I have tried a soft and hard reset, I have tried to boot into recovery and into download mode, I have removed the battery for 30 mins and tried again, I have tried another battery. The phone seems to be on as the battery/top of the phone is still warm, any ideas?

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[Q] Phone will not boot

Hey all,
My Galaxy S2 won't turn on, I have tried a soft and hard reset, I have tried to boot into recovery and into download mode, I have removed the battery for 30 mins and tried again, I have tried another battery. The phone seems to be on as the battery/top of the phone is still warm, any ideas?
What did you do before this state? Flashed a rom?
have you tried a jig to put in download mode?
when you connect to pc what is the uotcome? maybe you can boot to recovery via ADB?
but try a jig first

[Q] HELP - My Galaxy S2 won't turn on/charge

Hi everyone !
I need your help : my galaxy S2 (1 year and 4 months of age) is not turning on anymore...
I'm on rooted JellyBam 1.1 and have Siyah Kernel 5.1 w/ CWM Touch as a recovery.
I was noticing some problems since last month but I don't know if it's correlated : my screen would turn on and off randomly during the day without any notification or anything.
Half an hour ago it froze, so I removed the battery and put it back on, I restarted once, and was stuck on rom bootscreen, then I did the same, removed battery+restart and then I was stuck on siyah splashscreen. Finally I did this once more and that time my phone wouldn't start anymore...
I switched batteries, did a soft reset (holding POWER 10 secs with battery off) and a hard reset (holding POWER+HOME 10 secs with battery on), plugged it to a computer via USB but nothing works and I don't see the charging sign anymore !
Do you guys have a solution ? I'm no longer under waranty so I don't know what to do...
Thanks a lot !
PS : how can I retrieve the data from internal memory to back it up in case there are no solutions ?

Samsung S3 i9300 Stuck in bootloop

Hey everyone! Big problem..
I have installed CM12, Android 5.1 it's been all fine up until now, I was planning on selling the phone, so I factory reset it, that went well until it tried to turn itself back on afterwards.
My Samsung Galaxy S3 i9300t is stuck in a bootloop. I can not do absolutely anything.
I've tried taking the battery out, holding the three buttons, putting it back in, doing that with a USB, As soon as I turn it on, holding buttons or not it goes straight into a bootloop. I can't use odin to install the custom firmware again as I can't get into recovery or download mode or anything, once it's in the boot loop it stays there..
Any help is appreciated.
Bump?

Samsung galaxy s6

my samsung galaxy s6 is using android marshmalow,it started last night when out of nowhere it started to reboot itself,i tried restarting the phone but after a few seconds of being on it rebooted it self into the samsung galaxy s6 powerd by android state and keeps showing the white led light and just stays there,i tried wiping particion,factory reset,entering safe mode,but it keeps going back to that exact same state,i also tried charging the phone for several hours but keeps coming back to that state
Note:i can turn the mobile off,and when i do that thephone doesnt reboot,i only reboots when i try to leave it on
hi again,so i now managed somehow to boot it into safe mode and it doesnt reboot,but once i exit safe mode it start the hole thing over again.Note:sometimes when i boot it to safe mode it reboots some times it doesn´t

Samsung j6 soft brick problem

Hi guys, I have a samsung galaxy j600fn/ds, tryed to flash twrp, something went wrong and now I'm locked on the ''Samsung'' logo screen
I guess it is brick, though I'm totally stuck at the screen, the phone won't even turn off, so I don't know how to acces download mode to install stock firmware.. anyone can be of help?
EDIT: solved.. of course the solution was just to wait for the battery to be completley depleted, I just got scared there not beeing able to do anything
Wait-
So you just let your phone in bootloop all night (?), then you charge it without turning it on,
waited till 30%, and then you put it in download mode and installed the firmwere?
Does it really work? 'cause I tried to do that before, and the bootloop stopped. I tought I ended up into an hard brick.
I pressed powen and tried to put the phone into download mode, but nothing.
I put the usb on my pc, and odin was actually reading it, so I tried again and again to get into the download mode.
Afret 30 minutes, i pressed power again, (and finally) the boorloop restarted.
Well um.. the phone now is probably at 60%.. I hope it wont stop again, and I hope this method will work.

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